package printer;

public class Strings {
    public static String repeat(String string, int count) {
		if (string == null) {
			return null;
		}

        StringBuilder builder = new StringBuilder();
        while (count-- > 0) {
            builder.append(string);
        }
        return builder.toString();
    }

    public static String blank(int length) {
		if (length < 0) {
			return null;
		}
		if (length == 0) {
			return "";
		}
        return String.format("%" + length + "s", "");
    }
}
